# What mass of CaCl2 is needed to prepare 3.65 L of a 1.75M solution

57,305 results

**chem**

How many grams of CaCl2 (molar mass = 111.0 g/mol) are needed to prepare 4.44 L of 0.500 M CaCl2 solution?

**chemistry**

1. How many grams of calcium chloride (CaCl2) are there in 600.0 mL of an aqueous solution that has a concentration of 0.450 M CaCl2? 2. The conjugate base of HS- is: 3. What mass of calcium chloride, CaCl2, is needed to prepare 3.65 L of a 1.75 M solution? The molar mass of ...

**chemistry**

how many grams of cacl2 are needed to prepare 6.00L of a 0.400M CaCl2 solution

**chemistry**

calculate the value of water that is needed to dissolve 1.11 g of CaCl2 in order to prepare a 0.0250 M CaCl2 solution?

**Chemistry**

How mush CaCl2, in grams, is needed to make 2.0 L of a 3.5M solution? g CaCl2 = (2.0L) *( 3.5 mol Cl-/1L) * (1mol CaCl2/ 2mol Cl-) *( 110.98 g CaCl2/ 1 mol CaCl2) = 5.549 g CaCl2 i don't think i did any of this right

**chemistry**

You are given a 500 mL stock solution of 10%CaCl2 and are askes to prepare a 50 mL solution of .5% CaCl2. How would you prepare it? Please show work

**chemistry**

How do you sole this problem: how many grams of CaCl2 are needed to prepare 7.25 L of .015M solution?

**Chemistry**

Urgent... Someone please help!! Can someone please check to see if I am doing these correctly, I have a test tomorrow... Thank you :) Q) Calculate the new molarity of a 35mL sample of 0.450 M CaCl2 solution that is diluted with enough water to make 250 mL of solution. A) 0.450...

**Chemistry HELP!!!**

Only one question, it would be greatly appreciated if you would help me Thanx In an experiment, Na2CO3(aq) was added to 25.0 mL of CaCl2(aq) solution until no more precipitate was formed. The mass of precipitate produced was 2.50 g. Some statements about the experiment follows...

**Chemistry**

calculate the mass ratio of 25% cacl2 solution and water to prepare 500 g of a 5% salt solution

**Chemistry/maths**

Using the following stock solutions: NaCl, 100mmol KCl, 200mmol CaCl2, 160mmol Glucose, 5mmol Calculate the volumes of each stock solution and the volume of water needed to prepare 100ml of a single solution containing NaCl at 5.0mmol KCl at 2.5mmol CaCl2 at 40mmol Glucose at ...

**Chemistry**

If you were to prepare a 1.00 molal solution of CaCl2 beginning with water at 27.0 C, what would the final temperature of the solution be (in C)? Assume that the specific heats of both pure H2O and the solution are the same, 4.18 J/K*g. The dissolution of CaCl2 in water is ...

**chemistry**

Calculate the solubility of Cacl2 in g/L based on the experiement. Given 650g of CaCl2 added to 1.0L and allowed to dissolve as much as possible. While the remaining solid CaCl2 is filtered out of the solution and found to have a mass of 5.509g. What is the solublity of CaCl2

**chem**

How many grams of CaCl2 would be required to be added to water to prepare 1 Liter (1000ml) of a 1.72% (w/v) aqueous solution of CaCl2?

**Chemistry**

how many grams of CaCl2 would be required to be added to water to prepare 1 liter (1000 ml) of a 1.72% (w/v) aqueous solution of CaCl2?

**Please HELP CHEM**

How many grams of CaCl2 would be required to be added to water to prepare 1liter (1000ml) of a 1.72% (w/v) aqueous solution of CaCl2?

**Chemistry**

Can someone please check my work? Calculate the mass of (NH4)2S2O8 needed to prepare 250mL of a 0.100M solution. I got 5.705 g. Calculate the volume of 2.00M KI needed to prepare 250mL of a 0.200M solution. I got 0.025L or 25mL. Calculate the volume of 0.100M Na2S2O3 needed to...

**chemistry**

You wish to prepare a 10% CaCl2 solution. Only CaCl2 * 10H2O is availalbe. How many grams of the hydrated compound are required for 250ml of the reagent? Ca=40 Cl=35.5

**chemistry**

If 2.1 moles of CaCl2 are dissolved in enough water to make a 0.92-liter solution, what is the resulting molarity? 0.44 M CaCl2 0.70 M CaCl2 2.3 M CaCl2 3.0 M CaCl2

**Chemistry**

1. What is the molar of a sodium bicarbonate solution prepared from 150 g of NaHCO3 in 150 mL solution? 2. What mass of glucose (C6H12O6) is needed to prepare a solution of 10 M, 5 L solution? 3. What volume in liters of a 4.0 M Ca(NO3)2 is needed to provide 50 g Ca(NO3)2?

**Chemistry**

If the molality of a CaCl2 solution is .100 mol/kg, and was made from 500.0 mL of water, how many grams of CaCl2 were needed to make the solution? Step by step would be appreciated!

**Chemistry**

A student intend to prepare 200ml of 0.3M NaCl solution . The mass in gram of NaCl needed to prepare solution is ?!

**Shawn**

How many milliliters of 0.355 M NaF solution are needed to react completely with 24.6 mL of 0.216 M CaCl2 solution? How many grams of CaF2 will be formed? The reaction is CaCl2(aq) + 2NaF(aq) → CaF2(s) + 2NaCl(aq)

**chemistry**

Moles chemistry? Calculate the mass of solute required to prepare ib the solution 200cm^3 of solution containig 0.50 mol dm ^-3 cl-iond prepared by dissolving cacl2.6h2o in water.

**chemistry**

Suppose you were instructed to prepare 100. g of 14.5% CaCl2 solution, you would need Blank 1 g of CaCl2 and Blank 2 g of water.

**chemistry**

When 25 mL of C2H5OH (density 0.80 g.cm-3) is dissolved in water to prepare a 250 mL solution, the density of the solution was found to be 0.950 g.cm-3. Calculate a. Molarity of pure ethanol; b. Molarity of ethanol in the final solution; c. Volume of the final solution which ...

**Chemistry**

158.5 mL of a AgNO3 solution at 5.0M was combined with a 3.5M CaCl2 solution. 110.5g of AgCl was recovered. Given that the CaCl2 is the limiting reagent, how many milliliters of the 3.5M CaCl2 solution was used?

**Chemistry**

How many grams of CaCl2 are needed to make 100ml of a 15% solution in water if only the dihydrated (CaCl2 •2H20) salt is available?

**chemistry**

What mass (in grams) of CaCl2(s) must be dissolved in pure water at 10.0 deg Celsius to make a 26.4 mL solution and to increase the solution temperature to 16.4 deg Celsius? Assume that there is no heat loss from the solution and that the solution has the same physical ...

**chemistry URGENT (1)**

What mass (in grams) of CaCl2(s) must be dissolved in pure water at 10.0 deg Celsius to make a 26.4 mL solution and to increase the solution temperature to 16.4 deg Celsius? Assume that there is no heat loss from the solution and that the solution has the same physical ...

**chem**

158.5 mL of a AgNO3 solution at 5.0M was combined with a 3.5M CaCl2 solution. 110.5g of AgCl was recovered. Given that the CaCl2 is the limiting reagent, how many milliliters of the 3.5M CaCl2 solution was used? 2 sig figs

**Chemistry**

How many grams of CaCl2 are needed to make 100ml of a 15% solution in water if only the dihydrated (CaCl2⋅2 H2O) salt is available?

**chemistry**

A solution is prepared by dissolving 23.7 g of CaCl2 in 375 g of water. The density of the resulting solution? is 1.05 g/ml. the concentration of CaCl2 is ________% by mass. answer: 5.94 can someone tell me the steps?

**chemistry**

how to prepare 500ml of a 0.75M Sodium Phosphate buffer solution at pH 7.5, how would you go about doing that?

**chemistry**

Calcium chloride, CaCl2, has been used to melt ice from roadways. Given that a solution is 25% CaCl2 by mass, estimate the freezing point.

**Chemistryyy**

a) A standard solution of 0.243 M NaOH was used to determine the concentration of a hydrochloric acid solution. If 46.33 mL of NaOH is needed to neutralize 10.00 mL of the acid, what is the molar concentration of the acid? b) A 0.150 M sodium chloride solution is referred to ...

**chemistry**

what is the mass of CuS04 needed to prepare a 125ml solution of 3.5M?

**Chem!!**

Consider the dissolution of CaCl2: CaCl2(s) -----------> Ca2+(aq) + 2Cl-(aq) ΔH=-81.5 kJ/mol An 11.0 gram sample of CaCl2 is dissolved in 125 g water with both substances at 25.0 °C. Calculate the final temperature of the solution assuming the solution has no heat ...

**science**

Q4.you will be asked to prepare 25.0 mL of a 0.019 M solution of sodium chloride during this experiment.... a.calculate mass of sodium chloride needed to prepare solution. (0.25L)(0.019M NaCl/L)*(58.5g NaCl/1mole NaCl)=0.278 g NaCl....is that right? someone just replied it was...

**Scient**

(NaCl) solutions used in intravenous injections have a concentration of 0.90% NaCl (mass/volume). 4.5grams of NaCl are needed to prepare 500.0 mL of this solution How much water must evaporate from this solution to give a solution that is 9.0% NaCl (mass/volume)?

**Chemistry**

A CaCl2 solution is given to increase blood levels of calcium. If a patient receives 5.0 mL of a 5.0 % (m/v) CaCl2 solution, how many grams of CaCl2 were given?

**chemistry**

how would you prepare 300 ml of a 10% CaCl2 solution (w/w)?

**biotech**

how would you prepare 300 ml of a 10% CaCl2 solution (w/w)?

**Chemistry**

What mass of KH2PO4 is needed to prepare 500.0 mL of a 0.067M solution?

**chemistry**

calculate the mass of naso4 needed to prepare of 0.5L of 0.15M of solution

**chemistr**

What mass of HNO3 is needed to prepare 400mL of 0.25N solution?

**science-chem**

first, thanks so much Bob for helping me!!!! Q4.you will be asked to prepare 25.0 mL of a 0.019 M solution of sodium chloride during this experiment.... a.calculate mass of sodium chloride needed to prepare solution. (0.25L)(0.019M NaCl/L)*(58.5g NaCl/1mole NaCl)=0.278 g NaCl...

**chemistry**

determine the amounts of solute and solvent needed to prepare the following solutions. 2.0 M aqueous NaCl solution 1.0 m aqueous KCl solution 25% by mass aqueous MgCl2 solution

**chemisty lab**

determine the amounts of solute and solvent needed to prepare the following solutions. 2.0 M aqueous NaCl solution 1.0 m aqueous KCl solution 25% by mass aqueous MgCl2 solution

**Chemistry**

How many g of CaCl2 are required to prepare 0.250 L of a 0.200 M solution?

**Science**

How many grams of CaCl2 are required to prepare 2.00 liters of 7.00 M CaCl2?

**chemistry**

calculate the mass of sodium hydroxide needed to prepare 500 mL of a 0.10 M solution.

**principles of chenistry**

What mass of calcuim chloride is needed to prepare 3.650L of 1.75 M solution?

**chemistry**

calculate the mass of sodium hydroxide needed to prepare 100 ml of a .10 m solution

**chemistry**

calculate the mass of sodium hydroxide needed to prepare 100 ml of a .10 m solution

**Chemistry**

What mass, in grams, of sodium chloride is needed to prepare 15.0 ml of 10% (m/v) NaCl solution?

**Chemistry**

In the laboratory you will be provided with a 1.0 x 10-5 M primary stock solution of fluorescein (MW=332.31g/mol). The calibration curve should include a blank, 0.025, 0.05, 0.075, 0.10, 0.15, and 0.25 micromolar fluorescein solutions. Since you will be using 25 mL volumetric ...

**Chemistry**

The molar mass of glucose is 180.16g/mol A. How much glucose is needed to make 500 ml of a .44M (.44mol/1L) solution? .44M/L=180.16x.44/100ml=79.27/1000=.07927x500=39.64g/mol/550ml? B What volume of the .44M solution is needed to prepare 1L of a 5% glucose solution? Don't know...

**chemistry**

How much CaCl2 (MM = 111.0 g/mol) would you weigh out to prepare 325. mL of 0.150. M CaCl2?

**Chemistry**

1. What is the percent by mass of a solution that contains 50 grams of solute dissolved in 200 grams of solution? What is the concentration of the same solution in parts per million? 2. What is the percent mass of a solution that contains 75 grams of salt dissolved in 150 ...

**Chemistry**

If 10.0g of CaCl2 and 10.0g of NaCl are dissolved in 100.0mL of solution, what is the concentration of chloride ions? (the molar mass of CaCl2 is 111.0g/mol; the molar mass of NaCl is 58.44g/mol. I found individual molar mass of: Ca-40.08 Cl-35.45 Na-22.99 So I divided 10g ...

**college chemistry**

given 3.650 l of a 1.75 M solution, what mass of calcium chloride is needed to prepare?

**chemistry**

What is the mass of naoh needed to prepare a 0.365m solution dissolved in 1525ml of water

**Chemistry**

A chemist wants to make 4.5 L of a 0.310 M CaCl2 solution what mass of CaCl2 (in g) should the chemist use

**chemistry**

A chemist wants to make 5.5 L of a 0.250 M CaCl2 solution, what mass of CaCl2 (in g) should the chemist use?

**Chemistry**

If 10.0g of CaCl2 and 10.0g of NaCl are dissolved in 100.0mL of solution, what is the concentration of chloride ions? I found the molar mass of CaCl2 is 111.0g/mol; the molar mass of NaCl is 58.44g/mol. I divided 10g CaCl2/111.0g CaCl2 I divided 10g NaCl/588.44g NaCl and added...

**Chemistry**

How would you prepare 165 mL of a 0.976 M NaOH solution, starting with a 6.36 M stock solution? Volume of solution needed? Volume of water needed?

**physical chemistry**

calculate the mass of NaCl needed to prepare 1000cm of 0.025M solution (molar mass of NaCl is 58.5)

**Chemistry**

Consider the dissolution of CaCl2. CaCl2(s) Ca2+(aq) + 2 Cl-(aq) ÄH = -81.5 kJ A 12.4 g sample of CaCl2 is dissolved in 100. g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the...

**Chemistry**

Consider the dissolution of CaCl2. CaCl2(s) Ca2+(aq) + 2 Cl-(aq) ÄH = -81.5 kJ A 10.4-g sample of CaCl2 is dissolved in 102 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the ...

**Chemistry**

How much H3PO4 is needed to neutralize 1 liter of a 0.75M solution of NaOH? (in moles)

**Chemistry**

a chemist wants to make 5.5L of a .3M Cacl2 solution. What mass of CaCl2 should the chemist use?

**chemistry**

Consider the dissolution of CaCl2. CaCl2(s) Ca2+(aq) + 2 Cl-(aq) ΔH = -81.5 kJ A 13.0 g sample of CaCl2 is dissolved in 134 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming ...

**chemistry**

calculate the mass percent of the following solutions 1.25 g CaCL2 in 35.0 g H2O I am not sure if i have the correct set up (1.25g CaCl2/1.25 g CaCl2 + 35.0 g H20)*100

**chemistry**

how many grans of Ca(OH) are needed to prepare 800.0 ml solution of 0.15M concentration? molar mass of Ca(OH) is 74g/mole

**chemistry**

Calculate the mass of silver nitrate needed to prepare a solution of concentration 0.01 moles per litre

**Chemistry**

Calculate mass of silver nitrate needed to prepare a solution of concentration 0.01 moles per liter.

**chemistry**

Calculate the mass of salt needed to prepare 100 cm3 of 0.05 M solution of: (i) Fe(NH4)2(SO4)2.6H2O

**Chemistry**

How many milliliters of 0.540 M sodium sulfate solution would be needed to precipitate the calcium ion from 60.0 mL of 0.180 M CaCl2 solution?

**chemistry**

Calculate the mass of sodium hydroxide needed to prepare 500 mL of a 0.10 M solution. I'm pretty sure the answer is 2 grams, but how do I get to that?

**chemistry**

Calculate the mass of sodium hydroxide needed to prepare 500 mL of a 0.10 M solution. I'm pretty sure the answer is 2 grams, but how do I get to that?

**chemistry**

Determine the mass of NaCl present needed to prepare 500mL of 4.0%m/v solution. Please show me how to set up problem

**Chemistry**

Determine the volume, in milliliters, required to prepare each of the following diluted solutions. 40.0mL of a 2.75M KNO3 solution using a 1.00M KNO3 solution 45.0mL of a 2.90M H2SO4 solution using a 6.00M H2SO4 solution 0.700L of a 2.10M NH4Cl solution using a 5.00M NH4Cl ...

**chemistry**

Find the molar masses of the following compounds: 1. LiI 2. PbCO4 3. Mg(OH)2 4. (NH4)3PO4 Find the percent composition (percent by mass) of the given element in the following compounds: 1. Fluorine in AgF 2. Hydrogen in glucose (C6H12O6) 3. Oxygen in Fe2(SO4)3 PART II: ...

**Chemistry**

How many moles of potassium sulfate would you need to prepare 1200 grams of 5.0% sulfate (m/m) solution? Calculate the volume of solution of 3.6 NH4CI needed to prepare 350.0ml of 1.24 M NH4CI. How many grams of ammonium chloride are in the solution you created in the above ...

**Great Valley**

How many moles of potassium sulfate would you need to prepare 1200 grams of 5.0% sulfate (m/m) solution? Calculate the volume of solution of 3.6 NH4CI needed to prepare 350.0ml of 1.24 M NH4CI. How many grams of ammonium chloride are in the solution you created in the above ...

**GEN CHEM**

A solution of CaCl2 is prepared by dissolving 1.004 g of the solid in approximately 30 mL of water. How many moles of CaCl2 does this solution contain?

**Chemistry**

A 230.-mL sample of a 0.280 M CaCl2 solution is left on a hot plate overnight; the following morning, the solution is 1.10 M. What volume of water evaporated from the 0.280 M CaCl2 solution?

**Chemistry**

1.How many grams of KCl is in 225 mL of a 0.452 M solution? 2.What volume in mL of 0.555 M solution contains 85.0g Na2SO4? 3.How many grams of CaCl2 would be dissolved in 2.0L of a 0.10 M solution of CaCl2? Can you please show me how to do these problems?

**chemistry**

What mass of water (in grams) is needed to dissolve 28.7 g of ammonium nitrate NH4NO3 in order to prepare a 0.452 m (molal) solution?

**chemistry**

how do you calculate the molaarity of a water solution of CaCl2, given that 5.04 L of the solution contains 612 g of CaCl2.

**chem**

Determine the mass(w/w%) percent of CaCl2 given the following information. The vapor pressure of a CaCl2 solution is 81.6 mmHg at 50degrees C. The vapor pressure of pure water at this temp is 92.6mmHg. Assume that you have 1.00mol of water.[Raoult's Law: P(solution)=X(solvent)...

**Chemistry**

A solution is made by dissolving 10.9 g of calcium chloride, CaCl2,in enough water to make exactly 500 mL of solution. What is the concentration (molarity) of CaCl2 in mol/L?

**chemistry**

You wish to prepare 100.0 mL of a 800.0 ppm w/v sodium (MW = 22.9897 g/mol) solution. How many grams of sodium dichromate dihydrate (Na2Cr2O7·2H2O, MW = 297.998 g/mol) are needed to prepare this solution?

**Chemistry**

10% (m/m) Sodium Hydroxide solution, NaOH(aq) is used to break down wood fibre to make paper. A) What mass of the solute is needed to make 250mL of 10% (m/m) solution? B) What mass of solvent is needed? C) What is the molar concentration of the solution?

**CHEMISTRY..please help..thanks**

A laboratory assistant needs to prepare 325 mL of 0.110 M CaCl2 solution. How many grams of calcium chloride will she need?

**Chemistry**

Dissolving solid CaCl2 H2O in a large volume of water is endothermic to the extent of 14.6 kj/mol. Also given: CaCl2(s)+6H2O(l)->CaCl2* 6H2O(s) delta H = -97.0 kj what is the heat of solution of anhydrous CaCl2 in a large volume of water?

**Chemistry**

Dissolving solid CaCl2 H2O in a large volume of water is endothermic to the extent of 14.6 kj/mol. Also given: CaCl2(s)+6H2O(l)->CaCl2* 6H2O(s) delta H = -97.0 kj what is the heat of solution of anhydrous CaCl2 in a large volume of water?

**institute of health sciences**

Chemistry A) determine the mass of sodium hydroxide needed to prepare 100ml of 0.5M standard solution B) describe the procedure used to prepare the standard solution C) use the 100ml stock solution of 0.5M sodium hydroxide to neutralize H2SO4 by volumetric analysis I) ...

**Intro to Chemistry**

How do you determine the mass of NACL needed to prepare 25.00 ml of a 1.585M NaCl Solution?